   -1   -1    0    1    1
   -1    1    1    0   -1
11 1
   -1    0    0    1    0
    0   -1   -1    0    1
    0   -1    0    0    1
   -1    0    0    1    1
   -1    0    0    0    1
    0   -1    0    1    1
    0    0   -1    0    1
    0    0    0    0    0
    0    0    0    0    1
    1    0    0    0    1
    0    0    0    1    1
